Extract a row as a function of a variable

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AtoZ
AtoZ 2018-12-6
评论： madhan ravi 2018-12-6
I have a numerical solution, which comes as a symbolic 6x51 matrix when I assign the values to T as T=[0:0.1:5].
I want to extract the first row (1x51) as a function of T, how to do it? The `rows2vars` prescription doesn't seem to work.
syms a T
v3=-2.375; g=1; b=0.00001; e2=0.5; k=pi/2;
w=-2*cos(k);
eqn = sin(3*k+a)/sin(2*k+a)==v3-w+(g.*T.^2)./(1+b.*T.^2)+(e2.*T.^2.*sin(k)^2)./(sin(2*k+a)^2+b*T.^2*sin(k)^2);
sol = solve(eqn,a,[0 pi]);
solutions = vpa(subs(sol),3);
xx=subs(solutions,T,[0:0.1:5])
% xx(1,:)
T2 = rows2vars(xx); %does not work

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采纳的回答

madhan ravi
madhan ravi 2018-12-6
编辑：madhan ravi 2018-12-6
T=linspace(0,5,numel(xx(1,:)));
y=T.^2+sin(P+xx(1,:));
plot(T,y)
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AtoZ
AtoZ 2018-12-6
编辑：AtoZ 2018-12-6
@madhan Thanks :) Could you please update your answer?, I'll accept it.

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